Type 1 and Type 2 Surge Protective Devices (SPDs)

11 Type 1 and Type 2 Surge Protective Devices (SPDs)Building Automation2 Littelfuse, Inc. 20212 Other products which share similararchitecture with Type 1 & 2 Surge Protective DevicesType III Surge protectorSwitch Mode Power SupplyCircuit BreakerDin RailPower SupplyType I & II Surge protectorCommunication port protectionIntelligent Outlets3 Littelfuse, Inc. 20213 Type 1 and 2 SPD growing at a CAGR of * Surge Protective Devices (SPDs) for AC lines Source:*CAGR from Market & Markets & Grandview Research averageMarket Trends and DriversWith intelligent Devices propagating throughout homes and buildings Surge protection has become even more importantVoltage surges come from various sources including lightning strikes, switching of large motors or switch gear, coupling, and electrostatic dischargeA commercial or industrial facility will have Surge protection Devices at the incoming AC line, at power distribution, and near critical electrically powered equipmentGlobal warming is projected to increase lighting strikes by 12% per degree Celsius of global warming and about 50% over this : Science MagazineNEC2020 requires all new homes in the US to have Type 1 or Type 2 SPD.

Figure 2: SPD activated by voltage surge How a Surge Protective Device (SPD) work Load SPD L/+ N/-PE PE (Protective Earth) Figure 1: SPD during normal operation Load SPD N/-PE (Protective Earth) 1. There are many different SPD product types different AC line voltages, configurations, and customer protection needs.

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  Devices, Protective, Surge, Surge protective device, Surge protective

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